Many people do not realize the importance of health___they have fallen ill.
A. until B．while C．when
相关试题
Lana said she wasn’t mad Marcia .
| A．in, any more | B．in, anymore |
| C．with, again | D．at, anymore |
Lana thinks she to my house .
| A．will come, study | B．is coming, to study |
| C．was coming, for study | D．come, studying |
He _____ when the UFO arrived.
| A．was sleeping | B．were sleeping |
| C．has slept | D．is asleep |
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